Multi-purpose device including mobile terminal and sensing device using radio-wave based sensor module

ABSTRACT

A sensing device includes a radio-wave based sensor module, and a control processor configured to transmit data sensed by the radio-wave based sensor module to a mobile terminal. A holder is configured to hold the mobile terminal and to comprise the radio-wave based sensor module.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a Continuation Application of U.S. patentapplication Ser. No. 14/944,476 filed on Nov. 18, 2015, which claims thebenefit under 35 USC 119(a) of Korean Patent Application No.10-2015-0018582, filed on Feb. 6, 2015, in the Korean IntellectualProperty Office, the entire disclosures of which are incorporated hereinby reference for all purposes.

BACKGROUND 1. Field

The following description relates to a multi-purpose device including amobile terminal and a sensing device using a radio-wave based sensormodule.

2. Description of Related Art

In a case of using an image sensor, an infrared sensor, or an ultrasonicsensor, a disturbance, such as external illumination may affect sensingperformance of the sensor. In particular, the sensing performance of theultrasonic sensor may be influenced by a foreign material on a surfacethereof, and the material may interrupt remote sensing ofbio-information of a human. A radar sensor, in turn, which uses a radiowave, may not be influenced by a same disturbance as the ultrasonicsensor. Instead, as the radar sensor forms a wide beam of a singlechannel and various obstacles and people are present in a beam area, theradar beam may have difficulties in identifying a predetermined obstacleand a predetermined user.

SUMMARY

This Summary is provided to introduce a selection of concepts in asimplified form that are further described below in the DetailedDescription. This Summary is not intended to identify key features oressential features of the claimed subject matter, nor is it intended tobe used as an aid in determining the scope of the claimed subjectmatter.

In accordance with an embodiment, there is provided a sensing device,including a radio-wave based sensor module; and a control processorconfigured to transmit data sensed by the radio-wave based sensor moduleto a mobile terminal.

The sensing device may also include a holder configured to hold themobile terminal and to include the radio-wave based sensor module.

The holder may be configured to hold the mobile terminal with a displayof the mobile terminal facing a user.

The sensing device may also include a driver configured to drive amotor, wherein the control processor may be configured to receive acontrol signal from the mobile terminal to drive the motor, and controlthe driver based on the control signal.

The sensing device may include a mover including a wheel or propellerconfigured to be operated by the driver, wherein the control processormay be configured to receive a control signal from the mobile terminalto drive the motor and to operate the mover.

The control processor may be configured to transmit, to the mobileterminal, identification information to identify a target to beconnected to the sensing device.

The radio-wave based sensor module may sense a position and a motion ofthe target, or a position and a distance from the target.

A sensing signal sent by or transmitted from the radio-wave based sensormodule may be an impulse signal that is generated using a delaycharacteristic of a digital logic gate, and includes a frequencyspectrum in which energy is distributed in a wide frequency band.

The radio-wave based sensor module may detect a distance between theradio-wave based sensor module and an obstacle based on a timedifference between a transmission of a sensing signal and a reception ofa reflected signal from the obstacle.

Based on a reduction in an amount of energy of a reflected signal withrespect to a proceeding distance between the radio-wave based sensormodule and an obstacle, the radio-wave based sensor module may calculatethe distance between the radio-wave based sensor module and the obstacleas corresponding to the detected amount of energy.

In accordance with an embodiment, there is provided a mobile terminal,including an attachment configured to be attached to a sensing deviceand including a radio-wave based sensor module; a communicatorconfigured to receive sensed data from the sensing device; and aprocessor configured to process the sensed data.

The processor may be configured to process the sensed data to estimateat least one of bio-information of a user, position information of theuser, and position information of an obstacle.

The processor may be configured to generate a control signal to drive amotor controlling a driver included in the sensing device in response tothe estimated position information of the user indicating a movement ofthe user.

The mobile terminal may also include a display configured to display theestimated at least one information.

The processor may be configured to generate emergency medicalinformation based on the bio-information, and the communicator may beconfigured to transmit the emergency medical information to a medicalinstitution server.

The communicator may be configured to receive, from the sensing device,identification information to identify a target connected to the sensingdevice, and the processor may be configured to process the sensed databased on the identification information.

The identification information may include a characteristic codeidentifying the target to be connected to the sensing device and acontrol code to control the target.

In accordance with an embodiment, there is provided a mobile terminal,including a target system; a communicator configured to receive senseddata from a sensing device, the sensing device including a radio-wavebased sensor module; and a controller configured to estimate at leastone of a gesture and a motion of a user based on the sensed data, andcontrol the target system based on at least one of the gesture and themotion.

The controller is configured to control the target system by verifying,based on the sensed data, whether the gesture or the motion of the useris moving away from or close to the sensing device or whether thegesture or the motion of the user moves laterally with respect to thesensing device.

The target system may include an audio system including a speaker.

The controller may be configured to control the audio system to play orpause music by verifying, based on the sensed data, whether the gestureor the motion of the user is moving away from or close to the sensingdevice.

The controller may be configured to control a volume of the speaker byverifying, based on the sensed data, whether the gesture or the motionof the user is moving away from or close to the sensing device.

The controller may be configured to control at least one of playingmusic on the audio system, stopping or pausing playback of music,controlling a volume of the speaker, playing back a previous orsubsequent song, and playing a melody based on at least one of thegesture and the motion of the user.

The communicator may be configured to receive, from the sensing device,identification information to be used to identify the sensing device,and the controller may be configured to process the sensed data based onthe identification information.

Other features and aspects will be apparent from the following detaileddescription, the drawings, and the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1A and 1B are diagrams illustrating examples of a sensing device,in accordance with an embodiment.

FIG. 2 is a diagram illustrating an example of a sensing deviceincluding a driver, in accordance with an embodiment.

FIGS. 3A and 3B are diagrams illustrating an example of an operation ofa radio-wave based sensor module, in accordance with an embodiment.

FIGS. 4A and 4B are graphs illustrating an example of a spectrum and awaveform of a sensing signal sent by a radio-wave based sensor module,in accordance with an embodiment.

FIGS. 5A and 5B are graphs illustrating examples of signals receivedafter a sensing radio wave is sent by a radio-wave based sensor module,in accordance with an embodiment.

FIGS. 6A and 6B are diagrams illustrating an example of a method ofsensing a target using a radio-wave based sensor module, in accordancewith an embodiment.

FIG. 7 is a block diagram illustrating an example of a mobile terminal,in accordance with an embodiment.

FIG. 8 is a diagram illustrating an example of the mobile terminalattached to a sensing device, in accordance with an embodiment.

FIG. 9 is a diagram illustrating an example of a sensing device spacedapart from a mobile terminal, in accordance with an embodiment.

FIG. 10 is a diagram illustrating an example of a sensing device thatsenses a biosignal of a user, in accordance with an embodiment.

FIG. 11 is a diagram illustrating an example of a sensing deviceconnected to a television (TV) in accordance with an embodiment.

FIG. 12 is a diagram illustrating an example of a sensing deviceconnected to an air conditioner, in accordance with an embodiment.

FIG. 13 is a diagram illustrating an example of a sensing deviceconnected to a robot, in accordance with an embodiment.

FIG. 14 is a diagram illustrating an example of a sensing deviceconnected to a drone, in accordance with an embodiment.

FIG. 15 is a block diagram illustrating an example of a mobile terminal,in accordance with an embodiment.

FIG. 16 is a diagram illustrating an example of a mobile terminal thatcontrols a target system based on data sensed by a sensing device, inaccordance with an embodiment.

Throughout the drawings and the detailed description, unless otherwisedescribed or provided, the same drawing reference numerals will beunderstood to refer to the same elements, features, and structures. Thedrawings may not be to scale, and the relative size, proportions, anddepiction of elements in the drawings may be exaggerated for clarity,illustration, and convenience.

DETAILED DESCRIPTION

The following detailed description is provided to assist the reader ingaining a comprehensive understanding of the methods, apparatuses,and/or systems described herein. However, various changes,modifications, and equivalents of the systems, apparatuses and/ormethods described herein will be apparent to one of ordinary skill inthe art. The progression of processing steps and/or operations describedis an example; however, the sequence of and/or operations is not limitedto that set forth herein and may be changed as is known in the art, withthe exception of steps and/or operations necessarily occurring in acertain order. Also, descriptions of functions and constructions thatare well known to one of ordinary skill in the art may be omitted forincreased clarity and conciseness.

The features described herein may be embodied in different forms, andare not to be construed as being limited to the examples describedherein. Rather, the examples described herein have been provided so thatthis disclosure will be thorough and complete, and will convey the fullscope of the disclosure to one of ordinary skill in the art.

Hereinafter, reference will now be made in detail to examples withreference to the accompanying drawings, wherein like reference numeralsrefer to like elements throughout.

Various alterations and modifications may be made to the examples. Here,the examples are not construed as limited to the disclosure and shouldbe understood to include all changes, equivalents, and replacementswithin the idea and the technical scope of the disclosure.

The terminology used herein is for the purpose of describing particularexamples only and is not to be limiting of the examples. As used herein,the singular forms “a”, “an”, and “the” are intended to include theplural forms as well, unless the context clearly indicates otherwise. Itwill be further understood that the terms “include/comprise” and/or“have” when used in this specification, specify the presence of statedfeatures, integers, steps, operations, elements, components, and/orcombinations thereof, but do not preclude the presence or addition ofone or more other features, numbers, steps, operations, elements,components, and/or groups thereof.

Unless otherwise defined, all terms including technical and scientificterms used herein have the same meaning as commonly understood by one ofordinary skill in the art to which examples belong. It will be furtherunderstood that terms, such as those defined in commonly-useddictionaries, should be interpreted as having a meaning that isconsistent with their meaning in the context of the relevant art andwill not be interpreted in an idealized or overly formal sense unlessexpressly so defined herein.

When describing the examples with reference to the accompanyingdrawings, like reference numerals refer to like constituent elements anda repeated description related thereto will be omitted. When it isdetermined detailed description related to a related known function orconfiguration they may make the purpose of the examples unnecessarilyambiguous in describing the examples, the detailed description will beomitted here.

It will be understood that when an element or layer is referred to asbeing “on”, “attached to”, or “connected to” another element or layer,it can be directly on or connected to the other element or layer orthrough intervening elements or layers may be present. In contrast, whenan element is referred to as being “directly on”, “directly attachedto”, or “directly connected to” another element or layer, there are nointervening elements or layers present. Like reference numerals refer tolike elements throughout. As used herein, the term “and/or” includes anyand all combinations of one or more of the associated listed items.

FIGS. 1A and 1B are diagrams illustrating examples of a sensing device,in accordance with an embodiment.

Referring to FIG. 1A, a sensing device 100 includes at least oneradio-wave based sensor module 110, a control processor 130, and aholder 150.

The radio-wave based sensor module 110 senses data related to a targetwithin a sensing range using a radio wave. When a user is within thesensing range, the radio-wave based sensor module 110 senses a signalindicative of a breath, a heartbeat, and/or a motion of the user. When apuppy or an obstacle is within the sensing range, the radio-wave basedsensor module 110 senses a position and a motion of the puppy, or aposition of the obstacle and a distance from the obstacle.

For example, the radio-wave based sensor module 110 is an ultra wideband(UWB) radar module that sends an impulse radio wave. The radio-wavebased sensor module 110 employs the UWB radar module. However, examplesare not limited thereto.

The radio-wave based sensor module 110 employs a radar module using atypical radio wave or other radio-wave based sensor modules. The sensingdevice 100 includes a single radio-wave based sensor module 110 or aplurality of radio-wave based sensor modules 110.

The control processor 130 transmits the data sensed by the radio-wavebased sensor module 110 to a mobile terminal 50. The sensing device 100and the mobile terminal 50 exchange data through wired and wirelesscommunications. The control processor 130 includes, for example, auniversal serial bus (USB) hub.

The sensing device 100 or the control processor 130 of the sensingdevice 100, and the mobile terminal 50 includes wireless Internetinterfaces such as a wireless local area network (WLAN), a wirelessfidelity (Wi-Fi) direct, a digital living network alliance (DLNA), awireless broadband (WiBro), a world interoperability for microwaveaccess (WiMAX), and a high speed downlink packet access (HSDPA), forexample, and short-range communication interfaces such as Bluetooth™, aradio frequency identification (RFID), an infrared data association(IrDA), a UWB, ZigBee, and a near field communication (NFC).

In an example, the mobile terminal 50 programs or controls the controlprocessor 130 through an application programming interface (API).

The holder 150 holds the mobile terminal 50. The holder 150 includes theradio-wave based sensor module 110. The holder 150 holds the mobileterminal 50 in a form as shown in FIG. 1A or 1B.

Referring to FIG. 1B, the mobile terminal 50 to be connected to theholder 150 of the sensing device 100 is illustrated.

The holder 150 holds the mobile terminal 50 with a display of the mobileterminal 50 facing a user. The holder 150 is provided in a form of aplane as shown in FIG. 1A, or provided in a form of a stand as shown inFIG. 1B.

The holder 150 includes a portion to be connected to an attachment ofthe mobile terminal 50, and also include a structure to be attached orconnected to a variety of electronic products or furniture.

The term “mobile terminal” used herein includes a typical mobileterminal equipped with a display, and all various mobile devicesequipped with a basic communication module and/or a processor.

FIG. 2 is a diagram illustrating an example of a sensing deviceincluding a driver, in accordance with an embodiment.

Referring to FIG. 2, a sensing device 200 includes at least oneradio-wave based sensor module 210, a control processor 230, a holder250, and a driver 270.

The descriptions of the at least one radio-wave based sensor module 110,the control processor 130, and the holder 150 of FIGS. 1A and 1B may beapplicable to the at least one radio-wave based sensor module 210, thecontrol processor 230, and the holder 250 and, thus, duplicateddescriptions will be omitted for conciseness.

In one illustrative configuration, the driver 270 is a motor. The motoris, for example, a one or more-axis servo-motor such as a 3-axisservo-motor, a stepping motor, a linear motor, or a direct current (DC)motor.

The control processor 230 receives a control signal from the mobileterminal 50 to drive the motor, and controls the driver 270 based on thecontrol signal.

In this example, the mobile terminal 50 held by the holder 250 of thesensing device 200 estimates information, for example, bio-informationof a user, position information of the user, and position information ofan obstacle, based on the sensed data received from the controlprocessor 230.

When the estimated information, for example, the position information ofthe user, indicates a movement or a motion of the user, the mobileterminal 50 generates a control signal associated with the drive of themotor and transmits the generated control signal to the sensing device200 to control the driver 270.

In an example, the sensing device 200 further includes a mover (notshown) including at least one a wheel or a propeller configured to beoperated by the driver 270. The control processor 230 receives a controlsignal associated with the drive of the motor and an operation of themover from the mobile terminal 50, and controls the driver 270 and themover based on the control signal.

For example, when the user moves out of a sensing area of the radio-wavebased sensor module 210, the radio-wave based sensor module 210transmits sensed data related to a motion of the user to the mobileterminal 50. The mobile terminal 50 estimates position information ofthe user based on the sensed data. When the estimated positioninformation of the user indicates that the user has moved out of thesensing area of the radio-wave based sensor module 210, the mobileterminal 50 generates a control signal associated with a drive of themotor and an operation of the mover and transmits the generated controlsignal to the sensing device 200.

Based on the control signal transmitted from the mobile terminal 50, thecontrol processor 230 controls the driver 270 and the mover to track theuser. When the user is within the sensing area of the radio-wave basedsensor module 210 after the tracking, the radio-wave based sensor module210 senses a biosignal of the user or a position of the user.

FIGS. 3A and 3B are diagrams illustrating an example of an operation ofa radio-wave based sensor module, in accordance with an embodiment.

Referring to FIGS. 3A and 3B, an operation of a radar module R as anexample of a radio-wave based sensor module is illustrated.

As illustrated in FIG. 3A, the radar module R sends sensing radio wavesin all directions or in one direction through a transmission antenna(not shown). The sensing radio waves output from the radar module Rproceed in all directions or in one direction. When the sensing radiowaves proceeding in all directions meet an obstacle O, a portion of thesensing radio waves may be reflected from the obstacle O, and aremaining portion of the sensing radio waves may be transmitted throughthe obstacle O. The radio waves reflected from the obstacle O may bereturned to and received at the radar module R.

As illustrated in FIG. 3B, a time difference ΔT occurs between atransmission time that a sensing signal is sent from the radar module Rto a reception time that a signal reflected from the obstacle O isreceived at the radar module R. The time difference is referred to as a“reflected signal sensing time”.

The reflected signal sensing time ΔT refers to a time of flight (TOF)taken for the sensing signal sent from the radar module R to bereflected from the obstacle O and returned.

In an example, a distance from the radar module R to the obstacle O isdetected based on the reflected signal sensing time ΔT. In detail, thedistance from the radar module R to the obstacle O is calculated bydividing a product of the time difference ΔT and a speed of a radiowave, for example, 300,000 kilometers per second (km/s), by “2”. In thisexample, the sensing signal sent or transmitted from the radar module Ris illustrated in FIGS. 4A and 4B.

FIGS. 4A and 4B are graphs illustrating an example of a spectrum and awaveform of a sensing signal sent by a radio-wave based sensor module,in accordance with an embodiment.

As illustrated in FIG. 4A, a sensing signal sent by or transmitted fromthe radar module R is an impulse signal having a pulse width of a fewnanoseconds to less than a nanosecond. The impulse signal is generatedusing a delay characteristic of a digital logic gate.

The impulse signal has a frequency spectrum in which energy isdistributed in a relatively wide frequency band. In this example, energyis relatively low at each frequency and, thus, a crosstalk with otherradio communication devices may be prevented.

In particular, as illustrated in FIG. 4B, a communication method usingan impulse signal with a bandwidth greater than or equal to 25% of acenter frequency is referred to as a UWB communication method, and aradar module using such an impulse signal is referred to as a UWB radarmodule. A radio-wave based sensor module included in a sensing deviceemploys such a UWB radar module. However, examples are not limitedthereto. The radio-wave based sensor module may also employ a radarmodule using a typical radio wave.

The radar module R transmitting an impulse signal as a sensing radiowave A and the signal reflected from the obstacle O and returned to theradar module R are illustrated in FIGS. 5A and 5B.

FIGS. 5A and 5B are graphs illustrating examples of signals receivedafter a sensing radio wave is sent from a radio-wave based sensormodule, in accordance with an embodiment.

The graph of FIG. 5A illustrates a signal received at the radar module Rin a case in which the obstacle O is absent. The graph of FIG. 5Billustrates a signal received by the radar module R in a case in whichthe obstacle O is present.

In a case in which the obstacle O is absent, the radar module R receivesa signal with interference signals generated around the radar module R,as shown in FIG. 5A. In this example, a relatively small intensity orlow amplitude of the signal is received constantly.

In a case in which an obstacle O is present, the radar module R receivesa pulse signal with a significant amplitude, as shown in FIG. 5B, when apredetermined time ΔT elapses after transmission of a sensing signal. Achange in the amplitude of the received signal indicates that a signalis reflected from the obstacle O and is received at the radar module R.

When a change in the amplitude of the received signal is sensed, theradar module R detects a time used until a change in an amplitude of asignal received reflected from the obstacle O after the sensing signalis sent from the radar module R, for example, a reflected signal sensingtime ΔT, is detected. For example, when an intensity of the signalreceived at the radar module R is greater than or equal to a referencevalue, a maximum value of the received signal is detected at the radarmodule R, and a time from the time that the signal is reflected from theobstacle O to a time that the signal at which the maximum value isdetected at the radar module R is determined to be the reflected signalsensing time ΔT.

As described above, in a case in which an obstacle O is present, inaddition to the amplitude of the signal received at the radar module R,a phase and a frequency of the received signal also changes. In detail,the radar module R receives a signal with a different phase or adifferent frequency compared to a case in which an obstacle O is absentafter the sensing signal is output. In this example, the radar module Rdetects a time at which the phase or the frequency changes, for example,the reflected signal sensing time ΔT, by sensing a change in the phaseor the frequency of the received signal.

When the radar module R detects the reflected signal sensing time ΔT, acontrol processor (refer to the control processor 130 of FIG. 1A)transmits the detected reflected signal sensing time ΔT to a mobileterminal.

The mobile terminal calculates a distance between the radar module R andthe obstacle O based on the reflected signal sensing time ΔT receivedfrom the control processor of the sensing device.

The radar module R detects the distance between the radar module R andthe obstacle O based on a time-of-flight (TOF), for example, a timedifference between a transmission of the sensing signal and a receptionof the reflected signal. However, examples are not limited thereto. Inan alternative configuration, the radar module R detects the distancebetween the radar module R and the obstacle O based on an amount ofenergy of the reflected signal. For instance, the radar module detectsthe amount of energy of the reflected signal based on a reduction in anamount of energy of the reflected signal with respect to a proceedingdistance between the radar module R and the obstacle O, and calculates adistance corresponding to the detected amount of energy.

FIGS. 6A and 6B are diagrams illustrating an example of a method ofsensing a target using a radio-wave based sensor module, in accordancewith an embodiment.

Referring to FIG. 6A, a case in which two radio-wave based sensormodules 601 and 603 included in a sensing device sense a target 610 isillustrated.

When the radio-wave based sensor modules 601 and 603 are disposed at apredetermined interval, areas in which the radio-wave based sensormodules 601 and 603 send sensing signals overlap and form a sensingarea, for example, pair area 1. The radio-wave based sensor modules 601and 603 sense the target 610 within the sensing area.

The radio-wave based sensor modules 601 and 603 transmit a result ofsensing the target 610 in the sensing area to a mobile terminal througha control processor. The mobile terminal estimates position informationof the target 610 based on data sensed by the radio-wave based sensormodules 601 and 603. For example, the position information of the target610 is provided in a form of coordinates (x, y).

The mobile terminal estimates the position information of the target610, for example, using triangulation. The target 610 is an inanimateobject acting as an obstacle, for example, a wall or a bookshelf, or aliving thing to be detected, for example, a human or a puppy.

In accordance with an embodiment, when the two radio-wave based sensormodules 601 and 603 are used, two-dimensional (2D) positions (x, y) ofat least two targets are also detected.

Referring to FIG. 6B, a case in which three radio-wave based sensormodules 605, 607, and 609 included in a sensing device sense targets 620and 630 is illustrated.

The radio-wave based sensor modules 605, 607, and 609 are disposed atpredetermined intervals, for example, at intervals of 60 degrees, in afront portion of the sensing device. In accordance with oneconfiguration, as shown in FIG. 6B, the radio-wave based sensor modules605, 607, and 609 are positioned equidistant from each other. Inaccordance with another configuration, the radio-wave based sensormodules 605, 607, and 609 are positioned at different distances fromeach other. For instance, the radio-wave based sensor modules 605 and607 are positioned closer to each other than the radio-wave based sensormodules 607 and 609.

The radio-wave based sensor modules 605, 607, and 609 transmit sensingsignals in all directions. Areas in which the radio-wave based sensormodules 605, 607, and 609 transmit the sensing signals overlap and formsensing areas, for example, pair area 1 and pair area 2. The sensingareas are areas in which the radio-wave based sensor modules 605, 607,and 609 detect position information of the targets 620 and 630.

Similar to the example of FIG. 6A, the radio-wave based sensor modules605, 607, and 609 transmit a result of sensing the targets 620 and 630in the sensing areas to a mobile terminal through a control processor.The mobile terminal estimates the position information of the targets620 and 630 based on data sensed from the radio-wave based sensormodules 605, 607, and 609. For example, the position information of thetargets 620 and 630 is provided in a form of coordinates (x, y, z).

When the three radio-wave based sensor modules 605, 607, and 609 areused, 2D positions of the plurality of targets 620 and 630 are detectedor three-dimensional (3D) positions (x, y, z) of the targets 620 and 630are detected. As a number of radio-wave based sensor modules increases,an accuracy of recognizing a 2D position of a target increases. In anexample, similar to the target sensing, a position of a moving object orhuman is tracked using triangulation.

The method of sensing a target, as described above, senses a surface ofan object closest to radio-wave based sensor modules when variousobjects are present in a sensing area. Position tracking tracks aposition of a predetermined object or human in real time.

When a target moves out of a sensing area of at least two radio-wavebased sensor modules, it may be difficult to sense a biosignal of thetarget and track a position of the target. In this example, byconfiguring a driver and a mover in the sensing device including theradio-wave based sensor modules, a position of a moving human is trackedor a biosignal of the moving human is sensed. In this example, thedriver includes a one or more-axis servo-motor. The mover includes atleast one wheel or propeller operated by the driver.

In an example, the sensing device tracks a position of a target bydriving a motor based on a control signal received from a mobileterminal when the target moves and senses a biosignal of the target, forexample, a human, in a static state. In this example, the sensing deviceuses a plurality of antennas to form a relatively wide beam fortracking, and uses an antenna to form a relatively narrow beam to senseprecise bio-information, for example, a breath and a heart rate. To forma relatively narrow beam, a guide composition of a metallic material maybe added to the sensing device.

FIG. 7 is a block diagram illustrating an example of a mobile terminal,in accordance with an embodiment.

Referring to FIG. 7, a mobile terminal 700 to be attached to a sensingdevice includes a communicator 730 and a processor 750.

An attachment 710 is attached to the sensing device. In this example,the sensing device includes at least one radio-wave based sensor module.

The communicator 730 receives sensed data from the sensing device.

The processor 750 processes the sensed data received through thecommunicator 730.

The processor 750 estimates at least one of bio-information of a user,position information of the user, and position information of anobstacle based on the sensed data received through the communicator 730.

The processor 750 generates emergency medical information based on theestimated bio-information. The communicator 730 transmits the emergencymedical information to a medical institution server. An example of theprocessor 750 generating emergency medical information based onestimated bio-information will be described with reference to FIG. 10.

When the estimated position information of the user indicates a movementof the user, the processor 750 generates a control signal to drive amotor and control a driver included in the sensing device. Thecommunicator 730 transmits the control signal generated by the processor750 to the sensing device.

The communicator 730 additionally receives, from the sensing device,identification information to identify a target to be connected to thesensing device. The processor 750 processes the sensed data based on theidentification information.

In this example, the identification information includes acharacteristic code and a control code to be used to control the target.The characteristic code indicates that the target to be connected to thesensing device is, for example, a robot, a drone, an air conditioner, atelevision (TV), a refrigerator, a camera, a vehicle, an audio system,or a medical device.

The mobile terminal 700 further includes a display 770 configured todisplay the estimated at least one information. An example of a mobileterminal including a display, the mobile terminal being attached to asensing device will be described with reference to FIG. 8.

FIG. 8 is a diagram illustrating an example of a mobile terminalattached to a sensing device, in accordance with an embodiment.

Referring to FIG. 8, a sensing device 810 and a mobile terminal 830 areprovided on a wall on which a mirror 800 is positioned. In this example,an attachment (refer to the attachment 710 of FIG. 7) of the mobileterminal 830 is attached or connected to a holder (refer to the holder150 of FIG. 1A) of the sensing device 810.

For example, a user gets close to the mirror 800 on the wall on whichthe sensing device 810 and the mobile terminal 830 are mounted.

The sensing device 810 senses a breath and a heartbeat of the user, andtransmits the sensed data to the mobile terminal 830.

The mobile terminal 830 estimates bio-information of the user based onthe sensed data. The mobile terminal 830 estimates the bio-informationof the user, for example, estimates whether a breath of the user isnormal, slow or fast, or regarding whether a heartbeat of the user isnormal or irregular, based on the sensed data. The mobile terminal 830displays the estimated bio-information of the user on a display.

In an example, the sensing device 810 is spaced apart from the mobileterminal 830 in an inner portion of a car seat. The sensing device 810senses bio-information of a child or a patient sitting on the car seat,and transmits the sensed data to the mobile terminal 830. A user sittingon a driver's seat may verify the bio-information of the child or thepatient sitting on the car seat through the mobile terminal 830, withoutlooking back or away from the road.

FIG. 9 is a diagram illustrating an example of a sensing device spacedapart from a mobile terminal, in accordance with an embodiment.

Referring to FIG. 9, a sensing device 900 includes at least oneradio-wave based sensor module 910 and a control processor 930.

The control processor 930 transmits data sensed by the at least oneradio-wave based sensor module 910 to a mobile terminal 50 throughwireless communication or short-range communication. The mobile terminal50 may be spaced apart from the sensing device 900.

The mobile terminal 50 spaced apart from the sensing device 900includes, for example, wireless Internet interfaces such as a WLAN, aWi-Fi direct, a DLNA, a WiBro, a WiMAX, and an HSDPA, for example, andshort-range communication interfaces such as Bluetooth™, an RFID, anIrDA, a UWB, ZigBee, and an NFC.

The sensing device 900 includes the aforementioned wireless Internetinterfaces and short-range communication interfaces.

The sensing device 900 further includes a driver (not shown) configuredto drive a motor. The control processor 930 receives a control signalfrom the mobile terminal 50 to drive the motor and control the driverbased on the control signal.

The sensing device 900 further includes a mover (not shown) including atleast one wheel or propeller configured to operate by the driver. Inthis example, the control processor 930 receives a control signal fromthe mobile terminal 50 to drive the motor and operate the mover. Thecontrol processor 930 controls the driver and the mover based on thecontrol signal.

In an example, a function of a processor of the mobile terminal 50 isperformed by the control processor 930 of the sensing device 900. Thecontrol processor 930 of the sensing device 900 estimatesbio-information of a user, position information of the user, andposition information of an obstacle by processing data sensed by theradio-wave based sensor module 910 of the sensing device 900. Further,the control processor 930 processes the sensed data based onidentification information to be used to identify a target to beconnected to the sensing device 900.

Hereinafter, examples of a sensing device spaced apart from a mobileterminal will be described with reference to FIGS. 10 through 14.However, examples are not limited thereto. In an example, a mobileterminal is held in a sensing device. In this example, the mobileterminal is a mobile terminal provided in a typical form equipped with adisplay as described above, or a mobile device provided in a formexcluding a display, but equipped with a basic communication moduleand/or a processor.

FIG. 10 is a diagram illustrating an example of a sensing device thatsenses a biosignal of a user, in accordance with an embodiment.

Referring to FIG. 10, a sensing device 1010 senses a breath of a user, aheart rate of the user, and a minute motion of an inner or outer portionof a body of the user based on a sensing radio wave output from at leastone radio-wave based sensor module.

As illustrated in FIG. 10, when the sensing device 1010 is put on aperiphery of a bed, the sensing device 1010 senses data related to aheartbeat, a breathing state, and a sleeping state of the user.

The data sensed by the sensing device 1010 is transmitted to a mobileterminal spaced apart from the sensing device 1010.

For example, when the data sensed by the sensing device 1010 correspondsto breathing data, the mobile terminal estimates a breathing state ofthe user based on the breathing data. The breathing state of the user isestimated as shown in a graph 1030. The breathing state of the user maybe classified into, for example, a normal breathing state, a hypopneastate, and an apnea state.

When the breathing data sensed by the sensing device 1010 is estimatedto correspond to the hypopnea state or the apnea state, the mobileterminal generates emergency medical information, and transmits theemergency medical information to a medical institution server or to anyother server programmed or configured to receive notifications withemergency medical information. In this example, the emergency medicalinformation includes a breathing state or a heartbeat state of the user,an address of the user, contact details of a family, and nearby medicalinstitution information.

The mobile terminal verifies the nearby medical institution information,for example, a position of a nearby medical institution, based on aposition of the mobile terminal using a global positioning system (GPS)included in the mobile terminal, and generates the emergency medicalinformation based on the nearby medical institution information.

In accordance with an example, the medical institution server receivingthe emergency medical information from the mobile terminal makes a phonecall based on the contact details of the family included in theemergency medical information, and instructs the nearby medicalinstitution to send an ambulance.

FIG. 11 is a diagram illustrating an example of a sensing deviceconnected to a TV, in accordance with an embodiment.

Referring to FIG. 11, a sensing device 1110 connected to a front portionof a TV 1100 is illustrated.

The sensing device 1110 includes, for example, a single radio-wave basedsensor module, and senses a movement of a user or a motion of a bodypart of the user in front of a screen of the TV 1100. For example, thesensing device 1110 senses a hand gesture of the user in aone-dimensional (1D), 2D, or 3D form.

The sensing device 1110 senses a movement of the user from left to rightin front of the screen of the TV 1100. The mobile terminal receivingsensed data from the sensing device 1110 estimates position informationof the user based on the sensed data, and generates a signal to controla driver 1130 based on the estimated position information.

In this example, the signal to control the driver 1130 is a controlsignal to move the TV 1100 from left to right so that a direction of thescreen of the TV 1100 matches a moving direction of the user.

Further, a control processor (not shown) of the sensing device 1110transmits to the mobile terminal identification information indicatingthat a target connected to the sensing device 1110 is a TV. The mobileterminal processes the sensed data received from the sensing device 1110based on the identification information.

For example, the mobile terminal verifies that a position of a user isgetting away from the sensing device 1110 based on the data sensed bythe sensing device 1110, and verifies that a target connected to thesensing device 1110 is the TV 1100 based on a characteristic codeincluded in identification information transmitted by the sensing device1110.

Based on the data sensed by the sensing device 1110, when the mobileterminal verifies that the position information of the user is gettingaway from the sensing device 1110, the mobile terminal generates acontrol signal to increase a volume of the TV 1100 connected to thesensing device 1110 or a control signal to turn-off the power to the TV1100 based on a control code to control the TV 1100 included in theidentification information. The mobile terminal transmits to the TV 1100the control signal to increase the volume of the TV 1100 or the controlsignal to turn-off the power to the TV 1100.

Based on the data sensed by the sensing device 1110, when the mobileterminal verifies that the user shakes a body part, for example, a hand,the mobile terminal generates a control signal to change a channel of aprogram being broadcast on the TV 1100 connected to the sensing device1110 to a previous channel or a subsequent channel.

When a distance from a sofa disposed in front of the screen of the TV1100 is within a sensing range of the radio-wave based sensor module,the sensing device 1110 senses data related to a breath or a pulse of ahuman on the sofa and transmits the sensed data to the mobile terminal.

The mobile terminal verifies whether the human on the sofa is sleepingbased on the sensed data received from the sensing device 1110. When themobile terminal verifies that the human on the sofa is sleeping, themobile terminal generates a control signal to turn-off the power to theTV 1100.

FIG. 12 is a diagram illustrating an example of a sensing deviceconnected to an air conditioner, in accordance with an embodiment.

Referring to FIG. 12, a sensing device 1210 connected to an airconditioner 1200 is illustrated.

The sensing device 1210 includes, for example, at least one radio-wavebased sensor module, and senses a position of a user based on a frontportion of the air conditioner 1200. The sensing device 1210 transmitsthe sensed data to a mobile terminal. In this example, the sensed datais information to be used to calculate the position of the user, forexample, a distance between the user and the air conditioner 1200, andan angle at which the user is positioned from a center of the airconditioner 1200.

The mobile terminal receiving the sensed data from the sensing device1210 estimates position information of the user. Further, the mobileterminal verifies that a target connected to the sensing device 1210 isthe air conditioner 1200 based on a characteristic code included inidentification information transmitted by the sensing device 1210. Themobile terminal processes the sensed data based on the identificationinformation.

The mobile terminal generates an air conditioner control signal tochange a direction of wind based on the position information estimatedusing a control code included in the identification information. Themobile terminal transmits the air conditioner control signal to the airconditioner 1200.

FIG. 13 is a diagram illustrating an example of a sensing deviceconnected to a robot, in accordance with an embodiment.

Referring to FIG. 13, a sensing device 1310 connected to a robot 1300 isillustrated.

The robot 1300 includes a driver 1330 configured to drive a motor, and amover 1350 including at least one wheel operated by the driver 1330. Therobot 1300 tracks a motion of a user using the driver 1330 and the mover1350.

When the sensing device 1310 is connected to the robot 1300, the sensingdevice 1310 transmits to a mobile terminal identification informationindicating that a target connected to the sensing device 1310 is therobot 1300. The mobile terminal verifies that the sensing device 1310 isconnected to the robot 1300 based on a characteristic code included inthe identification information.

The sensing device 1310 includes, for example, at least one radio-wavebased sensor module, and senses a movement of a user or a motion of abody part on a periphery of the robot 1300. In this example, the robot1300 is provided in various shapes, for example, a doll, a bag, and atoy. The sensing device 1310 is attached to an outer portion or an innerportion of the robot 1300.

For example, the sensing device 1310 senses a movement of the user fromleft to right of the robot 1300. The mobile terminal receiving senseddata from the sensing device 1310 estimates position information of theuser based on the sensed data, and generates a signal to control thedriver 1330 and the mover 1350 of the robot 1300 based on the estimatedposition information. In this example, the mobile terminal processes thesensed data received from the sensing device 1310 based on theidentification information.

The user, the sensing device 1310, or the robot 1300 includes a deviceconfigured to measure a distance through radio-wave based communication,for example, UWB, WiFi, and Bluetooth low energy (BLE). In this example,although the user moves out of a sensing area, the sensing device 1310or the robot 1300 autonomously drives toward the user using a radiowave. For example, the user is a disabled person carrying the sensingdevice 1310 or the device configured to measure a distance throughradio-wave based communication.

FIG. 14 is a diagram illustrating an example of a sensing deviceconnected to a drone, in accordance with an embodiment.

Referring to FIG. 14, a sensing device 1410 connected to a drone 1400 isillustrated.

The drone 1400 includes a driver 1430 configured to drive a motor, and amover 1450 including at least one propeller configured to be operated bythe driver 1430.

When the sensing device 1410 is connected to the drone 1400, the sensingdevice 1410 transmits to a mobile terminal identification informationindicating that a target connected to the sensing device 1410 is thedrone 1400. The mobile terminal verifies that the sensing device 1410 isconnected to the drone 1400 based on a characteristic code included inthe identification information.

The sensing device 1410 includes, for example, at least one radio-wavebased sensor module, and simultaneously senses a position of a user anda position of an obstacle on a periphery of the drone 1400.

For example, the sensing device 1410 senses a movement of the userwalking under the drone 1400. The mobile terminal receiving the senseddata from the sensing device 1410 estimates position information of theuser based on the sensed data, and generates a signal to control thedriver 1430 and the mover 1450 of the drone 1400 based on the estimatedposition information. The mobile terminal generates the signal tocontrol the driver 1430 and the mover 1450 using a control code includedin the identification information.

In an example, the sensing device 1410 is provided in a form of therobot 1300 of FIG. 13 or the drone 1400 including a driver and a mover.

FIG. 15 is a block diagram illustrating an example of a mobile terminal,in accordance with an embodiment.

Referring to FIG. 15, a mobile terminal 1500 includes a target system1510, a communicator 1530, and a controller 1550.

The target system 1510 is included in a mobile terminal 1500. In oneillustrative example, “being included” refers to being included in aninternal portion of the mobile terminal 1500, and also refers to beingexternally connected to the mobile terminal 1500 and driven.

The target system 1510 includes, for example, an audio system includinga speaker included in the mobile terminal 1500, or an automated externaldefibrillator (AED) system to be connected to the mobile terminal 1500and driven.

The communicator 1530 receives sensed data from a sensing device spacedapart from the mobile terminal 1500. The sensing device includes atleast one radio-wave based sensor module.

The controller 1550 estimates at least one of a gesture and a motion ofa user based on the sensed data, and controls the target system 1510based on at least one of the gesture and the motion. In one illustrativeexample, the “gesture” is a static form performed by a body part of theuser. Further, the “motion” is a dynamic motion performed by at least abody part of the user.

The controller 1550 controls an operation of the target system 1510 byverifying, based on the sensed data, whether the gesture or the motionof the user is getting away from or close to the sensing device orwhether the gesture or the motion of the user moves laterally withrespect to the sensing device.

For example, when the target system 1510 corresponds to an audio systemincluding a speaker, the controller 1550 may control, based on at leastone of the gesture and the motion of the user, operations of, forexample, playing music on the audio system, stopping or pausing playbackof music, controlling a volume of the speaker, playing back a previousor subsequent song, and playing a melody to make a musical rhythm basedon a position of a hand.

In one example, when the target system 1510 corresponds to an automatedexternal defibrillator (AED) system, based on at least one of thegesture and the motion of the user, the controller 1550 controls,operations of charging the AED system and performing a defibrillation.

The communicator 1530 also receives from the sensing deviceidentification information identifying a target to be connected to thesensing device. In this example, the controller 1550 processes thesensed data based on the identification information. The controller 1550processes the sensed data using a control code included in theidentification information.

FIG. 16 is a diagram illustrating an example of a mobile terminal thatcontrols a target system based on data sensed by a sensing device, inaccordance with an embodiment.

Referring to FIG. 16, a sensing device 1630 attached to a bottom of adesk 1610, and a mobile terminal 1650 spaced apart from the sensingdevice 1630 are illustrated. The mobile terminal 1650 includes an audiosystem including a speaker.

The sensing device 1630 attached to the bottom of the desk 1610 senses amovement of a body, for example, a hand, of a user above the desk 1610.The sensing device 1630 senses the movement using a sensing radio waveand a reflected radio wave, and transmits the sensed data to the mobileterminal 1650.

The mobile terminal 1650 estimates a gesture or a motion of the handbased on the sensed data received from the sensing device 1630, andcontrols the audio system including the speaker based on at least one ofthe gesture and the motion.

The mobile terminal 1650 verifies using the sensed data, whether thegesture or the motion of the user is getting away from or getting closeto the sensing device 1630. When the gesture or the motion is gettingaway from the sensing device 1630, the mobile terminal 1650 controls theaudio system to play or pause music.

For example, when the gesture or the motion of the user is sensed withina sensing range of the sensing device 1630, the mobile terminal 1650controls the audio system to play music based on the sensed data.

When the user moves a hand of the user away from the desk 1610 whilemusic is being played, the mobile terminal 1650 controls the audiosystem to pause the music based on the sensed data.

Further, the mobile terminal 1650 controls a volume of the speaker byverifying based on the sensed data, whether the gesture or the motion ofthe user is getting away from or close to the sensing device 1630.

For example, when it is verified that the gesture or the motion of theuser moves in a vertical direction with respect to the sensing device1630, the mobile terminal 1650 adjusts the volume of the speaker. Whenthe sensing device 1630 includes at least one radio-wave based sensormodule, the sensing device 1630 produces various melodies by sensing aposition of a hand of the user.

The various modules, elements, and methods described above may beimplemented using one or more hardware components, one or more softwarecomponents, or a combination of one or more hardware components and oneor more software components.

The apparatuses, holders, communicators, attachments, modules, devices,and other components illustrated in FIGS. 1A through 16 that perform theoperations described herein are implemented by hardware components.Examples of hardware components include processors, modules,controllers, sensors, generators, drivers, and any other electroniccomponents known to one of ordinary skill in the art. In one example,the hardware components are implemented by one or more processors orcomputers. A processor or computer is implemented by one or moreprocessing elements, such as an array of logic gates, a controller andan arithmetic logic unit, a digital signal processor, a microcomputer, aprogrammable logic controller, a field-programmable gate array, aprogrammable logic array, a microprocessor, or any other device orcombination of devices known to one of ordinary skill in the art that iscapable of responding to and executing instructions in a defined mannerto achieve a desired result. In one example, a processor or computerincludes, or is connected to, one or more memories storing instructionsor software that are executed by the processor or computer. Hardwarecomponents implemented by a processor or computer execute instructionsor software, such as an operating system (OS) and one or more softwareapplications that run on the OS, to perform the operations describedherein.

The hardware components also access, manipulate, process, create, andstore data in response to execution of the instructions or software. Forsimplicity, the singular term “processor” or “computer” may be used inthe description of the examples described herein, but in other examplesmultiple processors or computers are used, or a processor or computerincludes multiple processing elements, or multiple types of processingelements, or both. In one example, a hardware component includesmultiple processors, and in another example, a hardware componentincludes a processor and a controller. A hardware component has any oneor more of different processing configurations, examples of whichinclude a single processor, independent processors, parallel processors,single-instruction single-data (SISD) multiprocessing,single-instruction multiple-data (SIMD) multiprocessing,multiple-instruction single-data (MISD) multiprocessing, andmultiple-instruction multiple-data (MIMD) multiprocessing.

The methods that perform the operations described herein with respect toFIGS. 1A through 16 are performed by a processor or a computer asdescribed above executing instructions or software to perform theoperations described herein.

Instructions or software to control a processor or computer to implementthe hardware components and perform the methods as described above arewritten as computer programs, code segments, instructions or anycombination thereof, for individually or collectively instructing orconfiguring the processor or computer to operate as a machine orspecial-purpose computer to perform the operations performed by thehardware components and the methods as described above. In one example,the instructions or software include machine code that is directlyexecuted by the processor or computer, such as machine code produced bya compiler. In another example, the instructions or software includehigher-level code that is executed by the processor or computer using aninterpreter. Programmers of ordinary skill in the art can readily writethe instructions or software based on the block diagrams and the flowcharts illustrated in the drawings and the corresponding descriptions inthe specification, which disclose algorithms for performing theoperations performed by the hardware components and the methods asdescribed above.

The instructions or software to control a processor or computer toimplement the hardware components and perform the methods as describedabove, and any associated data, data files, and data structures, arerecorded, stored, or fixed in or on one or more non-transitorycomputer-readable storage media. Examples of a non-transitorycomputer-readable storage medium include read-only memory (ROM),random-access memory (RAM), flash memory, CD-ROMs, CD-Rs, CD+Rs, CD-RWs,CD+RWs, DVD-ROMs, DVD-Rs, DVD+Rs, DVD-RWs, DVD+RWs, DVD-RAMs, BD-ROMs,BD-Rs, BD-R LTHs, BD-REs, magnetic tapes, floppy disks, magneto-opticaldata storage devices, optical data storage devices, hard disks,solid-state disks, and any device known to one of ordinary skill in theart that is capable of storing the instructions or software and anyassociated data, data files, and data structures in a non-transitorymanner and providing the instructions or software and any associateddata, data files, and data structures to a processor or computer so thatthe processor or computer can execute the instructions. In one example,the instructions or software and any associated data, data files, anddata structures are distributed over network-coupled computer systems sothat the instructions and software and any associated data, data files,and data structures are stored, accessed, and executed in a distributedfashion by the processor or computer.

While this disclosure includes specific examples, it will be apparent toone of ordinary skill in the art that various changes in form anddetails may be made in these examples without departing from the spiritand scope of the claims and their equivalents. The examples describedherein are to be considered in a descriptive sense only, and not forpurposes of limitation. Descriptions of features or aspects in eachexample are to be considered as being applicable to similar features oraspects in other examples. Suitable results may be achieved if thedescribed techniques are performed in a different order, and/or ifcomponents in a described system, architecture, device, or circuit arecombined in a different manner and/or replaced or supplemented by othercomponents or their equivalents. Therefore, the scope of the disclosureis defined not by the detailed description, but by the claims and theirequivalents, and all variations within the scope of the claims and theirequivalents are to be construed as being included in the disclosure.

What is claimed is:
 1. A sensing device, comprising: a radio-wave basedsensor module comprising two or more radar sensors configured totransmit sensing signals, form a sensing area by overlapping thetransmitted sensing signals, and receive sensing signals reflected byobjects within the sensing area; and a control processor configured totransmit, to a mobile terminal, data related to the objects based on achange in amplitude, phase or frequency between the transmitted sensingsignals and the received reflected sensing signals, wherein the sensingdevice is configured to be attached with the mobile terminal.
 2. Thesensing device of claim 1, further comprising: a driver configured todrive a motor, wherein the control processor is configured to receive acontrol signal from the mobile terminal to drive the motor, and controlthe driver based on the control signal.
 3. The sensing device of claim1, further comprising: a mover comprising a wheel or propellerconfigured to be operated by the driver, wherein the control processoris configured to receive a control signal from the mobile terminal todrive the motor and to operate the mover.
 4. The sensing device of claim1, wherein the control processor is configured to receive, from themobile terminal, a control signal associated with an operation of thesensing device, and control the two or more radar sensors based on thereceived control signal.
 5. The sensing device of claim 1, wherein theradio-wave based sensor module senses a position and a motion of anobject, or a position of the object and a distance from the object. 6.The sensing device of claim 1, wherein a sensing signal, of the sensingsignals, sent by, or transmitted from, the radio-wave based sensormodule is an impulse signal that is generated using a delaycharacteristic of a digital logic gate, and comprises a frequencyspectrum in which energy is distributed in a wide frequency band.
 7. Thesensing device of claim 1, wherein the radio-wave based sensor moduledetects a distance between the radio-wave based sensor module and anobstacle based on a time difference between a transmission of a sensingsignal and a reception of a reflected signal from the obstacle.
 8. Thesensing device of claim 1, wherein, based on a reduction in an amount ofenergy of a reflected signal with respect to a proceeding distancebetween the radio-wave based sensor module and an obstacle, theradio-wave based sensor module calculates the distance between theradio-wave based sensor module and the obstacle as corresponding to thedetected amount of energy.
 9. The sensing device of claim 1, furthercomprising: a holder configured to hold the mobile terminal and tocomprise the radio-wave based sensor module.
 10. The sensing device ofclaim 9, wherein the holder is configured to hold the mobile terminalwith a display of the mobile terminal facing a user.
 11. The sensingdevice of claim 1, wherein the radio-wave based sensor module isconfigured to detect objects within a sensing area based on acorresponding change in amplitudes of plural signals being reflectedfrom the objects.
 12. The sensing device of claim 11, wherein theradio-wave based sensor module is configured to detect a time used untila detecting or sensing of a change in an amplitude of a signal, of theplural signals, reflected from an object after a sensing signal is sentfrom the radio-wave based sensor module.
 13. A sensing device,comprising: a radio-wave based sensor module comprising two or moreradar sensors configured to transmit sensing signals, form a sensingarea by overlapping the transmitted sensing signals, and receive sensingsignals reflected by objects within the sensing area; and a controlprocessor configured to transmit, to a mobile terminal, data related tothe objects based on a change in amplitude, phase or frequency betweenthe transmitted sensing signals and the received reflected sensingsignals; and a holder configured to hold the mobile terminal and tocomprise the radio-wave based sensor module.